Friction wire-block clutch mechanism



" Feb. 25, 1930. 5. J. ROUTLEDGE 1,748,796

FRICTION WIRE BLOCK CLUTCH MECHANISM Filed sept. 9, 1927 2 Sheets-Sheet 1 FQJ.

ATTORNEY INVENTOR Feb. 25, 1930. s. .1. ROUTLEDGE 1,748,796

FRICTION WIRE BLOCK CLUTCH MECHANISM Filed Sept. 9. 1927 2 Sheets-Sheet 2 INVENTOR WITNESS: %ml/ ATTORNEY F b. 'zfsiieae I siMPseN-a ee meee, OEVZ'EVNSLEIKIALABAMA f RICTION WIRE-BLOCK CLUTCH Miiormivisiu Application filed September 9, i927- Serial Ne."21e, 5as.

. The present invention relates towire blocks and particularly to the clutch mechanism controlling said blocks. I Ob ects of he invent on are to provide a friction clutch block by which. acceleration of the wire blocks may be obtained at the be- I ginning of the drawing of a-wire whereby the fracturing of the hole in the the which the wire is drawn through and the breaking of the wire by a. sudden jerkwhen thedevice is started may be avoided. a V e Other obj ects are the elimination of jarring and disfiguring of the gears and pinions of the machinecaused by the sudden starting With the present style of machine In the drawings constituting a part of the specification, v r I Figure l is asection taken'longitudina'lly thru the spindle of a wire block and also thru I the table or bench on which saidblock is mounted. 1 Figure 2 is a section Fig. 1, showing the clutch mechanism.

Figure 3 is'a fragmentary sectional detail View on line 83 of Figure 1 of the spindle, showing. the mounting of a guide ring on the spindle, and its connection with the clutch operating rod. 7 r Figure 4 18 21,. further fragmentaryv sectional view of the spindle showing'the clutchoperating cam mounted thereon and its connection withYthe-oam operating rod, being taken on line 4e4 of Figurel of Figure 2 showing in afragmentary manl ner the connection of the guide member of a clutch shoe in the aperture formed in the @g'u'idering. I

- '4 1 -Figure 6 is a detail perspective view showing the clutch shoe and th guide member secured thereto.

Referring to the draw ngs in detail the same reference characters designating the formed a depression 11 in which the mechanism' of a wire block is set. Concentric with this depression 11 the table is provided with an opening 12 thru which the spindle of the Q. wire block mayextend to a point beneath the .block. i

on the ,line 2-2-01:

I. I Figure 5 is a'deta-il section-on the line 5-5 I 00 same parts in all .viewsjoif the drawings, 10 designates a work table or bench in which'is table. 13 designates a spindle of" the wire I;

lock to the end of which is secured driving ge'arl l in mesh with a-gear'15 connected with a source of power. Mounted on the other end of thespindle is a wire block 16 on which e the wire "is wound; Said block may bejfpro- .vided with a dismountablering 17, as is usual in such mechanism. The wire block '16 is preferably connected to the spindle through the disk 18 which is secured totlie blockin any suitable manner andis provided with adjusting lugs 19 which fit in apertures 20 formed'inthe wire block. The wire block 2 may be further secured'in place by peening over'the end of the spindle as at 21 against the upper edge of the hub 22 of the wire The foregoing. constitutes no part of my,

invention which is directed to 'the clutch.. 'inechanism now about to be'described -5 cured to the undersurface of the disk 18 by anysuitable means. as by machine screws 23 is a'friction ring '24, the purpose of which will presently appear. Secured to the sp'inl y a" press fit andkey o b any other suitable means "is a hub 25 to the upper surtace otwhich is secured a; retaining and; guide ring 26 having a plurality of radial -lye rtending apertures 27 formed therein.

The securing means may be of anysuitable 5 character, as pins or rivets 28. The apertures or slotshave received therein the projecting guide members 29 of the frictionshoes .30,

the 'shoes being arranged circumferentially 1 about and above the projectingfiange 31 of the hub 25. The shoes are provided on their outer surface with dove tailed'slots adapti ed on 'thespindle 13. The spindle is'provid- 95 ed with a longitudinal central bore 36 in which is slidably mounted the rod 39 to which the spreader block ,is connected at its upper endbythe cross member 40L It i will be noted that -the'spreader block is me 1 stepped to provide cylindrical portions of relatively different diameters, whereby the block is capable of self adjustment to compensate for Wear of' the shoes. The lower end of said rod is connected by a cross member 42 to a guide ring 41. T he cross members ,40 and 4:2 extend through apertures 37 and formed in the spindle. 'ihe iErict-ion shoes 30 are connected together by means of a helical spring 43 secured internally and circumferentially thereo l fsaid spring being attached'to the shoes by means of staples 0r hooks 44.

In addition, when it is desired to connect the Wire block 16 rotatahly to the spindi the guide ring 41 is pressed downwardly in any suitable manner as by a .lever attached in the groox'te thereof, said lever not being shown for the sake of clearness and being of any usual type, whereupon the spreader bloclcilfi will press outwardl-y against the heads oi -the screws 3% dorcingithem outwardlyen the hub and pressing the frictionshoes mounted thereon against the 1'ing24;, whereupon the disk 18 and the Wire block 16 will rotate with the spindle 13,, it being understood that the -W1ll'6 block 16 and the disk 18 are loosely mounted on said spindle. When it is desired to release .theaolatch mechanism it is merely necessary to move the spreader block Ein an upper direction screws associated with the inner ends of said shoes, a spreader block mounted for sliding movement on said spindle and also rotatable therewith, and arranged to directly contact with said screws, said block being stepped 'to pl'O'VldQ cylindrical portions :of relatively ditierent diameters, whereby the block capalfle of selfadjustmentto compensate for wear of the shoes, and means i501 moving said spreader block.

2. A clutch comprising a rotatable spin die having a hub mounted thereon, a guide ring carried by the hub and provided with radially disposed passages, a friction ling arranged concentric with the hub, radially movable shoes, each including a guiding p n slidable throughnne ofzthe passages oi said vring and adapted to he moved outwardly vto tome (the shoe into engagement with said friction ring, adjusting screws associated with the inner ends of sa sn P spring arranged circun'iferentially about the guide ring and connecting sa d shoes, said spindle having a longitudinal here, a rod ,slidahle through said bore, a spreader block supported on the spindle for rotation there with and connected with'said rod, whereby the block can also he moved longitudinally of the spindle, said block being stepped to provide cylindrical portions of relatively different diameters, adapted to singly engage the said screws, whereby the block is capable of adjustment to compensate for Wear of the shoes, and means for operating said rod.

In testimony whereof I affix my signature.

SIMPSON J. ROUTLEDGE. 

